What is the CVSS score of CVE-2022-45957?

CVE-2022-45957 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 11.5%.

Is there a public PoC exploit available for CVE-2022-45957?

Yes, a public proof-of-concept exploit is available for CVE-2022-45957. Prioritise patching immediately. EPSS: 11.5%.

Zxhn H108Ns Firmware CVE-2022-45957

HIGH

Out-of-bounds Write (CWE-787)

2022-12-12 cve@mitre.org

Memory Corruption Zte Buffer Overflow Zxhn H108Ns Firmware

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

CVE Published

Dec 12, 2022 - 15:15 nvd

HIGH 7.5

DescriptionNVD

ZTE ZXHN-H108NS router with firmware version H108NSV1.0.7u_ZRD_GR2_A68 is vulnerable to remote stack buffer overflow.

AnalysisAI

ZTE ZXHN-H108NS router with firmware version H108NSV1.0.7u_ZRD_GR2_A68 is vulnerable to remote stack buffer overflow. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Out-of-bounds Write (CWE-787), which allows attackers to write data beyond allocated buffer boundaries leading to code execution or crashes. ZTE ZXHN-H108NS router with firmware version H108NSV1.0.7u_ZRD_GR2_A68 is vulnerable to remote stack buffer overflow. Affected products include: Zte Zxhn-H108Ns Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate write boundaries, use memory-safe languages, enable compiler protections (ASLR, stack canaries).